Part 4:
Kankuro’s Sasori Vs. Sasori and Sai’s brother
If you cut the chakra strings, then Omoi can join the battle.
The opportunity comes,
Deidara “Too late!!”
Kankuro “NOW! Kankuro’s Sanshouuo (salamander pupper) comes out of the ground and swallows Sai’s brother. He explodes.
Sai “BROTHERRRR!”
It was pretty lucky they were in the forest. The explosion? Anyhow, the reinforcements were killed / destroyed.

is out of his rucksack.
Deidara “I didn’t expect you to have some sort of defense puppet underground… You’re lucky that that blast wasn’t very powerful, yeah.

sasori “The defense puppet Sanshouuo. I created it long ago”
Sai “… to use him as a bomb”
Deidara “Yeah? Do you have a problem with that? I don’t care if you’re Sasuke’s replacement, you watch [<-- I don't understand this part -->]
Sai’s brother starts to regenerate.
Deidara “The soul is tied to this earth, we can regenerate as often as we like… even if we’re turned into a bomb, hahahaha!
Sai’s brother “I…don’t want to hurt you… …die… …even though you’ve ( or i’ve) been released from Root.

I know a little heresay about Konoha’s Root… The members are raised from a young age together like siblings, they’re raised to kill, they are trained to suppress their emotions…

Sai’s brother “If you lose your heart (emotions), you have no hesitation…that’s what a truly strong ninja is. In Root I was close to that. Kankuro “…”